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/*
* Copyright (c) 2016-2017, Linaro Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <kernel/pseudo_ta.h>
#include <optee_msg.h>
#include <optee_msg_supplicant.h>
#include <pta_socket.h>
#include <string.h>
#include <tee/tee_fs_rpc.h>
static uint32_t get_instance_id(struct tee_ta_session *sess)
{
return sess->ctx->ops->get_instance_id(sess->ctx);
}
static TEE_Result socket_open(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS])
{
TEE_Result res;
paddr_t pa;
uint64_t cookie;
void *va;
struct optee_msg_param msg_params[4];
uint32_t exp_pt = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_MEMREF_INPUT,
TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_VALUE_OUTPUT);
if (exp_pt != param_types) {
DMSG("got param_types 0x%x, expected 0x%x",
param_types, exp_pt);
return TEE_ERROR_BAD_PARAMETERS;
}
memset(msg_params, 0, sizeof(msg_params));
va = tee_fs_rpc_cache_alloc(params[1].memref.size, &pa, &cookie);
if (!va)
return TEE_ERROR_OUT_OF_MEMORY;
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_OPEN;
msg_params[0].u.value.b = instance_id;
msg_params[1].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[1].u.value.a = params[0].value.b; /* server port number */
msg_params[1].u.value.b = params[2].value.a; /* protocol */
msg_params[1].u.value.c = params[0].value.a; /* ip version */
/* server address */
msg_params[2].attr = OPTEE_MSG_ATTR_TYPE_TMEM_INPUT;
msg_params[2].u.tmem.buf_ptr = pa;
msg_params[2].u.tmem.size = params[1].memref.size;
msg_params[2].u.tmem.shm_ref = cookie;
memcpy(va, params[1].memref.buffer, params[1].memref.size);
/* socket handle */
msg_params[3].attr = OPTEE_MSG_ATTR_TYPE_VALUE_OUTPUT;
res = thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 4, msg_params);
if (res == TEE_SUCCESS)
params[3].value.a = msg_params[3].u.value.a;
return res;
}
static TEE_Result socket_close(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS])
{
struct optee_msg_param msg_params[1];
uint32_t exp_pt = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_NONE,
TEE_PARAM_TYPE_NONE,
TEE_PARAM_TYPE_NONE);
if (exp_pt != param_types) {
DMSG("got param_types 0x%x, expected 0x%x",
param_types, exp_pt);
return TEE_ERROR_BAD_PARAMETERS;
}
memset(msg_params, 0, sizeof(msg_params));
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_CLOSE;
msg_params[0].u.value.b = instance_id;
msg_params[0].u.value.c = params[0].value.a;
return thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 1, msg_params);
}
static TEE_Result socket_send(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS])
{
TEE_Result res;
paddr_t pa;
uint64_t cookie;
void *va;
struct optee_msg_param msg_params[3];
uint32_t exp_pt = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_MEMREF_INPUT,
TEE_PARAM_TYPE_VALUE_OUTPUT,
TEE_PARAM_TYPE_NONE);
if (exp_pt != param_types) {
DMSG("got param_types 0x%x, expected 0x%x",
param_types, exp_pt);
return TEE_ERROR_BAD_PARAMETERS;
}
memset(msg_params, 0, sizeof(msg_params));
va = tee_fs_rpc_cache_alloc(params[1].memref.size, &pa, &cookie);
if (!va)
return TEE_ERROR_OUT_OF_MEMORY;
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_SEND;
msg_params[0].u.value.b = instance_id;
msg_params[0].u.value.c = params[0].value.a; /* handle */
/* buffer */
msg_params[1].attr = OPTEE_MSG_ATTR_TYPE_TMEM_INPUT;
msg_params[1].u.tmem.buf_ptr = pa;
msg_params[1].u.tmem.size = params[1].memref.size;
msg_params[1].u.tmem.shm_ref = cookie;
memcpy(va, params[1].memref.buffer, params[1].memref.size);
msg_params[2].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INOUT;
msg_params[2].u.value.a = params[0].value.b /* timeout */;
res = thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 3, msg_params);
params[2].value.a = msg_params[2].u.value.b; /* transmitted bytes */
return res;
}
static TEE_Result socket_recv(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS])
{
TEE_Result res;
paddr_t pa;
uint64_t cookie;
void *va;
struct optee_msg_param msg_params[3];
uint32_t exp_pt = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_MEMREF_OUTPUT,
TEE_PARAM_TYPE_NONE,
TEE_PARAM_TYPE_NONE);
if (exp_pt != param_types) {
DMSG("got param_types 0x%x, expected 0x%x",
param_types, exp_pt);
return TEE_ERROR_BAD_PARAMETERS;
}
memset(msg_params, 0, sizeof(msg_params));
va = tee_fs_rpc_cache_alloc(params[1].memref.size, &pa, &cookie);
if (!va)
return TEE_ERROR_OUT_OF_MEMORY;
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_RECV;
msg_params[0].u.value.b = instance_id;
msg_params[0].u.value.c = params[0].value.a; /* handle */
/* buffer */
msg_params[1].attr = OPTEE_MSG_ATTR_TYPE_TMEM_OUTPUT;
msg_params[1].u.tmem.buf_ptr = pa;
msg_params[1].u.tmem.size = params[1].memref.size;
msg_params[1].u.tmem.shm_ref = cookie;
msg_params[2].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[2].u.value.a = params[0].value.b /* timeout */;
res = thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 3, msg_params);
params[1].memref.size = msg_params[1].u.tmem.size;
if (msg_params[1].u.tmem.size)
memcpy(params[1].memref.buffer, va, msg_params[1].u.tmem.size);
return res;
}
static TEE_Result socket_ioctl(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS])
{
TEE_Result res;
paddr_t pa;
uint64_t cookie;
void *va;
struct optee_msg_param msg_params[3];
uint32_t exp_pt = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
TEE_PARAM_TYPE_MEMREF_INOUT,
TEE_PARAM_TYPE_NONE,
TEE_PARAM_TYPE_NONE);
if (exp_pt != param_types) {
DMSG("got param_types 0x%x, expected 0x%x",
param_types, exp_pt);
return TEE_ERROR_BAD_PARAMETERS;
}
memset(msg_params, 0, sizeof(msg_params));
va = tee_fs_rpc_cache_alloc(params[1].memref.size, &pa, &cookie);
if (!va)
return TEE_ERROR_OUT_OF_MEMORY;
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_IOCTL;
msg_params[0].u.value.b = instance_id;
msg_params[0].u.value.c = params[0].value.a; /* handle */
/* buffer */
msg_params[1].attr = OPTEE_MSG_ATTR_TYPE_TMEM_INOUT;
msg_params[1].u.tmem.buf_ptr = pa;
msg_params[1].u.tmem.size = params[1].memref.size;
msg_params[1].u.tmem.shm_ref = cookie;
memcpy(va, params[1].memref.buffer, params[1].memref.size);
msg_params[2].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[2].u.value.a = params[0].value.b; /* ioctl command */
res = thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 3, msg_params);
if (msg_params[1].u.tmem.size <= params[1].memref.size)
memcpy(params[1].memref.buffer, va, msg_params[1].u.tmem.size);
params[1].memref.size = msg_params[1].u.tmem.size;
return res;
}
typedef TEE_Result (*ta_func)(uint32_t instance_id, uint32_t param_types,
TEE_Param params[TEE_NUM_PARAMS]);
static const ta_func ta_funcs[] = {
[PTA_SOCKET_OPEN] = socket_open,
[PTA_SOCKET_CLOSE] = socket_close,
[PTA_SOCKET_SEND] = socket_send,
[PTA_SOCKET_RECV] = socket_recv,
[PTA_SOCKET_IOCTL] = socket_ioctl,
};
/*
* Trusted Application Entry Points
*/
static TEE_Result pta_socket_open_session(uint32_t param_types __unused,
TEE_Param pParams[TEE_NUM_PARAMS] __unused,
void **sess_ctx)
{
struct tee_ta_session *s;
/* Check that we're called from a TA */
s = tee_ta_get_calling_session();
if (!s)
return TEE_ERROR_ACCESS_DENIED;
*sess_ctx = (void *)(vaddr_t)get_instance_id(s);
return TEE_SUCCESS;
}
static void pta_socket_close_session(void *sess_ctx)
{
TEE_Result res;
struct optee_msg_param msg_params[1];
memset(msg_params, 0, sizeof(msg_params));
msg_params[0].attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
msg_params[0].u.value.a = OPTEE_MRC_SOCKET_CLOSE_ALL;
msg_params[0].u.value.b = (vaddr_t)sess_ctx;
res = thread_rpc_cmd(OPTEE_MSG_RPC_CMD_SOCKET, 1, msg_params);
if (res != TEE_SUCCESS)
DMSG("OPTEE_MRC_SOCKET_CLOSE_ALL failed: %#" PRIx32, res);
}
static TEE_Result pta_socket_invoke_command(void *sess_ctx, uint32_t cmd_id,
uint32_t param_types, TEE_Param params[TEE_NUM_PARAMS])
{
if (cmd_id < ARRAY_SIZE(ta_funcs) && ta_funcs[cmd_id])
return ta_funcs[cmd_id]((vaddr_t)sess_ctx, param_types, params);
return TEE_ERROR_NOT_IMPLEMENTED;
}
pseudo_ta_register(.uuid = PTA_SOCKET_UUID, .name = "socket",
.flags = PTA_DEFAULT_FLAGS,
.open_session_entry_point = pta_socket_open_session,
.close_session_entry_point = pta_socket_close_session,
.invoke_command_entry_point = pta_socket_invoke_command);
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